61 31 235 Replacing microswitch on left or right front seat (convertible)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove carrier of outer cover on front seat .

If necessary, partially detach seat cover .

Remove plug connection (1) from microswitch cover (2) and disconnect.

Unclip microswitch cover (2) and remove in direction of arrow.

Installation:

Make sure microswitch cover is correctly seated.

Fig 1: Identifying Microswitch Cover And Connector

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screw (1) completely by pulling gently.

NOTE: Screw (1) goes through two thread turns.

Raise locking pawl (2) slightly by pulling release handle and remove microswitch (3) in direction of arrow.

Fig 2: Removing Microswitch

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure bushing (1) and guides (2) are correctly seated.

Tightening torque: see 11AZ in 52 10 front seats .

Fig 3: Identifying Bushing And Guides

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Before fitting microswitch cover (4), carry out function test of microswitch (3) with backrest folded back:

Insert microswitch plug connection.
Switch ignition on.
Locking pawl (1) is at bottom, microswitch (3) is actuated, belt warning lamp must not light up/flash.
Raise locking pawl (1) with release handle, microswitch (3) is not actuated, belt warning lamp must flash.
If necessary, replace microswitch (3).

IMPORTANT: Do not bend switching spring (2) on microswitch (3).

Fig 4: Identifying Microswitch, Switching Spring, Locking Pawl, And Microswitch Cover

Courtesy of BMW OF NORTH AMERICA, INC.